Disk wheel



July 28, 1931. H. FORSYTH DISK WHEEL Filed May 18, 1922 lli/11171117111 I 30 Figs. 1, 2, 3 and 4 aresfra partu Patented July 1931 UNITED STATES PATENT GIDBGE H. I'ORS YTH, OI CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGJTIMIE'.N"1S,-

OiFFICE TO srEEn WHEEL conrom'rrorr, or 'mnsmo, meme, A conrom'rron or.

incnmur fmsx wnEnr.

Application filed Kay 18, 1922. Serial No. 561,804.

This invention has for its object, primarily, the provision of a simple, eflicient,

mechanical assembly of the thorou hlly wheel %0 y, preferably,th'ough not neces- 3' sarily a disk, at the wheel center with the hub and concomitant parts such as the hub enga nuts, guards against shearing of the rivmg connections, insures the mains tenanoe of an intimaterelation of the parts 15 when assembled, impartsa mutual supporting cooperation between the several parts thus preventing any r development of lost motion, and provides a substantially un-' broken front face to the wheel in the hub zone and adjacent thereto resulting in an improved appearance and the minimizing of opportunity for the zlodgement of dirt,.

the entrance of the elements and the attack of rust. I

Other inherent advantages of the invention will be made apparent to persons skilled in the art from the following written disclosure predicated; upon the accompanying drawing, wherein entary radial sections taken through di erentembodiments of the invention by way of exemplification. v

As obviously the wheel .structure is susceptibl .of further'modification without defrom. the essence of the invention and the sacrifice of its advanta es .to a material extent, the drawin s an descri tion are to be taken in an il ustrative an vnot in an unnecessarily limiting sense.

In Fig. 1 of the drawings the hub, indicated at 11, isshown as provided with a fixed 'hub plate or flange 12 shown as being formed integral therewith, although obvi-v ously the hu plate instead of bein integral n may be fixedly associated therewit aga nst relative rotation. The disk body 13 of the wheel is shown as forwardly concave outwardly beyond-the hub zone and as rearwardlysupported both laterally and radially in its deepest portion by the extension 12*,of the fixed hub plate 12. At the point 13 the disk is forwardly shouldered and inwardly thereof extends in a substantially radial direction being provided at intervals commodate the heads 14.0f bolts 15 fixedly associated with the hub plate 12, the plateformed.

being clamped between the shoulders by the heads and the nuts 16. To assist in. sustaining the shear strains a bushing or collar 17 is disposed about each of the bolts 15 adjacent the nut 16.

'55 annularly with fian 'ed apertures 13 to ac- It will'be'observed'that the disk body of I the wheel is angularly'interlockedwith the fixed hub plate by means of the bolt heads 14 received within the apertures 13 of the disk while disengagement or separation in by merely. sliding the disk off the bolt heads.

an axial direction is provided for :Addltional rprovision is made against angular displacement while providin for axial separation in that the center of tie disk is marginally notched for engagement with a key-way I 75 The disk body is held in assembled rela- 11 of the hub.

tion with the hub while in use and the interlocking bolts concealed b a removablehub or cover plate 18, central y grooved for engagement with the key 11 and bearing against the forward face 0 the disk, its

periphery preferably underlying the disk I shoulder. 13 so as to provide a substantially" flush surface,the removable plate itself being received within the central concavity of 5 the wheel body bounded by the shoulder Advantageously the removable hub orcover plate 18 is provided on itsbearing face with recesses 18 which receive and form an interlock with the bolt heads 14 which are concealed by said plate. I

The removable hub plate 18 is, in this fig ure, shown as positioned and held in lateral bearing relation to the wheel body and fixed hub plate by means of a hub cap 19 threaded upon the forward end of the hub.

In Fi 2 the hub 21 is provided with a fixedhu plate 22 havingit's periphery extending forwardly as in 'cated at 22 into an annular recess formed bythe forward shoulder 23 of the disk 23. Herein the cen- 'larly to receive the heads 24 of bolts 25, the

shanks of which extend through the fixed hub plate 22 and which bolts by means of the nuts 26 serve to clamp the brake drum 27 to the fixed hub'plate 22, rovidin an interlocking driving connectlon whic' may be supplemented-by notching the brake drum at 27 for engagement with a correspondingly notched portion of the hub.

To provide angular interlock between the fixed hub plate, the wheel body and brake drum, supplemental to the bolts and the head 24*, provision' is madefor an interlock between integral portions of the wheel body and fixed plate and brake drum by shearpressing these members as indicated at 23, 22'', and 27", the metal being sheared along approximately radial lines and then pressed laterally-beyond the. plane of the member, these integral portions projeetingfrom the face of one member being received within the resulting recesses in the adjacent memr. In this fi re the removable hub or cover plate 28 is s own as arched in diametric section and provided with a peripheral rear-- wardly and inwardly extending flange 28,

which flan e is received within the concavity disk.

of the dis body bounded bythe shoulder 23 and underlies said shouldered portion to form a-lateral and radial support for the This removable hub plate 28 is shown as having no angular interlock with the hub, as was the case in Fig. 1, but it is rotatable thereon and may be formed integral with the hub cap 29 or separated therefrom along I the line indicated at 30 as may be desired.

Hereinth'e hub cap, to prevent marl-ing of the paint when a wrench is applied thereto, is shown as covered with a shell 31 of non-corrosive metal attached thereto by the for interlocking in a corres'pondin In Fig. 3 the hub 33 has its fixed plate 34 disposed within the brake drum 35, the said hub, late 34, the brake drum 35 and the disk dy 36 being interlocked against anlar rotation by means of shearressed ormations 36 and 35 in the disk an brake drum,- respectively, as in Fig, 2, while the fixed hub plate 34 is radially ribbed at 34 recess formed by shear-pressing the brake rum 35.

1 The removable. .hub or cover plate 37, which ma be integral with the hub cap 38' or divide therefrom along'the line39, is

of substantially: the same construction as that shown in Fig. 2, having a rearwardl and inwardly extending ripheral flan 4% disposed within and 'und gi'lying the disfin I -fiorm of construction, the cooperative relaend of the hub cap is shown as provided with an interior wrench socket 41. p In Fig. 4 is illustrated, in a very simple tion between the disk shoulder 42 and a removable hub plate. 43 clamped upon the fixed hub plate or brakedrum 44 by means of bolts 45 transfixing a filler ring 46. Here it .will be observed that, apart from the more refined hub assembly details shown in the other figures, the shoulder 42 overlies the periphery of the removable hub, plate 43 soas to provide a substantially flush face and shed waterflowing down the face of the .Wheel.

By the invention as set forth hereinbefore, it will be observed that a wheel hub assem -bly is provided wherein the driving connections between the hub and, wheel are concealed from view, the wheel. face is relieved wardly of the shoulder 36. The forward separated therefrom. The front hub plate belng removed, the wheel body -may be sli pad in ,an axial direction off the nter- 'loc g bolts'or interlocking integral portions of the rear hub plate and disk. By I i the employment in the assembly of a removable hub plate underlying a shouldered portion of -t e wheel and bearing rearwardly and radially thereagainst, insuring a close fit of the parts when removed and reinforcing the wheel against inwardly directed radial stresses, the invention provides a wheel which is not only of decidedly pleasing appearance but also one having the greatest efiiciency when assembled and in use and most readil disassembled when required.

. contributing to the results generally stated hereinabove, it is to be noted that the central portion of the wheel disk within the hubzone, shown as disposed in a plane parallel to the plane of the wheel, is advantageously at a slight inclination thereto when disassembled, being inclined towards the rear. This counteracts any tendency of the central portion of the disk to spring towards the front out of engagement or away from a snug fit with the interlocking portions of the contiguous members. As a further precaution against disassociation of the interlock the portion 23 of the disk shown in Fig.2 as forwardly turned parallel to the axle, has its forward edge terminated immediately adjacent-the rear of the removable hub plate 28, thus preventing. a move- 'ment of the hub disk free of the interlock.

Furthermore, the arched contour and the 7 resilient character of the removable hub plate, astound Figs. 2 and 3, cooperates the load thrust reacts inwardly and for-l wardly upon the hub plate to give a back-' kick nut locking function thereto, thus overcoming any tendency of the threaded hub cap to loosen. i

I claim: a

1. In combination, an axle, a hub fitted thereon, a brake drum on said hub, said drum provided on the outer axial face thereof with a circumferentially extending series of indentations, a wheel body comprising a disk coaxially arranged on said hub, said body being indented to provide lugs adapted to seat .in the indentations in said drum, a disk fitted on said hub and a cap secured on the hub to clamp the wheel body against said drum.

2. In a wheel, an axle, a hub keyed thereon, a brake drum on said hub, said drum provided on the outer axial face thereof with a circumferentially extending series of indentations, a wheel body comprising a dished disk coaxially arranged on the said hub, with its convex side presented outwardly, said disk being indented to provide lugs adapted to seat in the indentations in said drum. a disk fitted on said hub and a cap secured on the hub to clamp the wheel body against said drum.

3. In a wheel of the class described, in combination, an axle, an xteriorly threaded hub fitted thereon, a brake drum on said hub, said drum provided on the outer axial face thereof with a circumferentially extending series of indentations, a wheel body comprising a concavo-convex disk-having a centrally arranged aperture adapted to receive said hub, said body mounted on said hub with 7 its convex side presented outwardly, indentationsin said body arranged to provide lugs adapted to seat in the indentations in said drum, a plate having a centrally positioned aperture adapted to receive the outwardly projecting end of said hub, said plate fitted on said hub and covering said indentations in said body and a cap threaded on said hub so as to bear against said plate and clamp the wheel body against said brake drum.

4. In a wheel of the class,d'escribed, a hub, a brake drum on said hub, a concavo-convex disk mounted on said hub and positioned against said brake drum, inwardly projecting lugs on said disk, said brake drum provided with recesses adapted to receive said lugs, a plate'having a centrally positioned aperture, said plate mounted on the outwardl dprojecting end of saidhub, a cap threa e on said hub, said cap bearing against said plate to hold said disk in an operative position against said brake drum.

In witness whereof I have hereunto subscribed my name.

GEORGE H. FORSYTH. 

